Listen to the sound clip Who is? from Mr. Burns: The Simpsons - Part 1: Who is? Who is? This sound is from Mr. Burns: The Simpsons - Part 1 Soundboard for Mr. Charles Montgomery Burns from Season 2 of The Simpsons. Contains nearly 90 lines including anger, complaining, rudeness, greed, and more. Go to the full soundboardwith more sound clips Search